Supramolecular aggregation patterns featuring Se⋯N secondary-bonding interactions in mono-nuclear selenium compounds: A comparison with their congeners

An evaluation of the Cambridge Structural Database for crystals containing Se…N secondary--bonding interactions was conducted. The presence of Se…N secondary-bonding interactions has been established in nearly 9% of crystals of mono-nuclear selenium compounds where such interactions can potentially...

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Main Author: Tiekink, Edward R. T. *
Format: Article
Language:English
Published: Elsevier 2021
Subjects:
Online Access:http://eprints.sunway.edu.my/1773/
http://eprints.sunway.edu.my/1773/1/Tiekink%20Supramolecular%20aggregation.pdf
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author Tiekink, Edward R. T. *
author_facet Tiekink, Edward R. T. *
author_sort Tiekink, Edward R. T. *
building SU Institutional Repository
collection Online Access
description An evaluation of the Cambridge Structural Database for crystals containing Se…N secondary--bonding interactions was conducted. The presence of Se…N secondary-bonding interactions has been established in nearly 9% of crystals of mono-nuclear selenium compounds where such interactions can potentially form, that is, having at least one nitrogen atom. The Se…N interactions feature in 71 zero-dimensional, usually di-nuclear aggregates, 63 one-dimensional chains and tapes, and smaller numbers of two- and three-dimensional arrays, that is seven and one, respectively. Selenium(II) compounds form the majority of the dataset with only eight selenium(IV) compounds included in the survey. In most cases (112 out of 142), the selenium centre forms a single Se…N contact with 26 aggregates having a selenium atom forming two contacts and four examples where three Se…N contacts are evident. The great propensity of selenadiazole rings (75%) and selenocyanates (50%) to form Se…N secondary-bonding interactions in their crystals is particularly noteworthy.
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spelling sunway-17732021-06-08T08:29:35Z http://eprints.sunway.edu.my/1773/ Supramolecular aggregation patterns featuring Se⋯N secondary-bonding interactions in mono-nuclear selenium compounds: A comparison with their congeners Tiekink, Edward R. T. * QD Chemistry An evaluation of the Cambridge Structural Database for crystals containing Se…N secondary--bonding interactions was conducted. The presence of Se…N secondary-bonding interactions has been established in nearly 9% of crystals of mono-nuclear selenium compounds where such interactions can potentially form, that is, having at least one nitrogen atom. The Se…N interactions feature in 71 zero-dimensional, usually di-nuclear aggregates, 63 one-dimensional chains and tapes, and smaller numbers of two- and three-dimensional arrays, that is seven and one, respectively. Selenium(II) compounds form the majority of the dataset with only eight selenium(IV) compounds included in the survey. In most cases (112 out of 142), the selenium centre forms a single Se…N contact with 26 aggregates having a selenium atom forming two contacts and four examples where three Se…N contacts are evident. The great propensity of selenadiazole rings (75%) and selenocyanates (50%) to form Se…N secondary-bonding interactions in their crystals is particularly noteworthy. Elsevier 2021-05 Article PeerReviewed text en cc_by_nc_4 http://eprints.sunway.edu.my/1773/1/Tiekink%20Supramolecular%20aggregation.pdf Tiekink, Edward R. T. * (2021) Supramolecular aggregation patterns featuring Se⋯N secondary-bonding interactions in mono-nuclear selenium compounds: A comparison with their congeners. Coordination Chemistry Reviews, 443. p. 214031. ISSN 0010-8545 http://doi.org/10.1016/j.ccr.2021.214031 doi:10.1016/j.ccr.2021.214031
spellingShingle QD Chemistry
Tiekink, Edward R. T. *
Supramolecular aggregation patterns featuring Se⋯N secondary-bonding interactions in mono-nuclear selenium compounds: A comparison with their congeners
title Supramolecular aggregation patterns featuring Se⋯N secondary-bonding interactions in mono-nuclear selenium compounds: A comparison with their congeners
title_full Supramolecular aggregation patterns featuring Se⋯N secondary-bonding interactions in mono-nuclear selenium compounds: A comparison with their congeners
title_fullStr Supramolecular aggregation patterns featuring Se⋯N secondary-bonding interactions in mono-nuclear selenium compounds: A comparison with their congeners
title_full_unstemmed Supramolecular aggregation patterns featuring Se⋯N secondary-bonding interactions in mono-nuclear selenium compounds: A comparison with their congeners
title_short Supramolecular aggregation patterns featuring Se⋯N secondary-bonding interactions in mono-nuclear selenium compounds: A comparison with their congeners
title_sort supramolecular aggregation patterns featuring se⋯n secondary-bonding interactions in mono-nuclear selenium compounds: a comparison with their congeners
topic QD Chemistry
url http://eprints.sunway.edu.my/1773/
http://eprints.sunway.edu.my/1773/
http://eprints.sunway.edu.my/1773/
http://eprints.sunway.edu.my/1773/1/Tiekink%20Supramolecular%20aggregation.pdf